期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：6
页码：4528
DOI：10.15680/IJIRSET.2015.0406065
出版社：S&S Publications
摘要：This article is present for a detailed investigation of the design of solar air heater having semi-circulartransverse rib roughness on the absorber plate by using the application of computational fluid dynamics (CFD). In thisSolar air heater an absorber plate is made of ‘Al’ and roughened with semi-circular sectioned transverse ribs due witchcreates the turbulence in the flow of fluid (air) and increase the heat transfer from the absorber plate to the fluid.Quantity of heat transfer is depending on Nusselt number. Nusselt number depends on surface heat transfer coefficient‘h’. Heat transfer coefficient is strongly depends on the relative roughness height (e). Here ANSYS FLUENT v 14.5 isused to simulate fluid flow through a conventional solar air heater.The results predicted by the present CFD investigation are much closer to previous experimental results. It can,therefore, be concluded that the present numerical results have demonstrated the validity of the proposed system. Thus,it is possible to establish a validated model for the prediction of heat transfer and fluid flow phenomena in artificiallyroughened solar air heater roughened with square-sectioned transverse rib roughness on the absorber plate.
关键词：Solar air heater; Solar energy; CFD; THPP; Nu; Re.
